Vehicle-brake mechanism.



A. S. ROSS.

VEHICLE BRAKE MECHANISM.

AIPLIOATION FILED OUT. 20, 1908.

91 5 ,7 96 Patented Mar. 23, 1909.

HHHIIIIIIHIIHIIHI ALBERT S. ROSS, 01: NORTH MEHOOPANY, PENNSYLVANIA.

VEHICLE-BRAKE MECHANISM.

$peciflcation of Letters Patent.

Patented March 98, 1909.

Application filed October 20, 1908. Serial No. 468,599.

power of the brake by the use of a pinion and gear, or pinions and gearwheels, as the particular construction of vehicle inay'require, andwhich by the use of such 1nechanisn'i power may be put upon the brakesby the expenditure of but little power from the operator.

A further object is to provide improvoments of this character comprisingbut few parts, easily assembled, strong and durable in use and notlikely to be broken or get out of order and which can be very easilyoperated to most effectually brake the vehicle.

With these and other objects in view the invention consists in certainnovel features of construction, combinations and arrangements of partsas will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings Figure 1, is a top plan view illustrating apreferred form of my 1m roveinents. Figs. 2 and 3 are views ofmodiic'ations. Fig. 4, is a detail view in elevation illustrating the clevisand gears of Fig. 2.

1 IPPIQSGIltS a bolster sup )orted by wheels 2 and carrying hounds 3,the latterand bolster constructed. to receive reach 4. The r ach 4 inFig. 1 is secured. against movement, and is what is known as a solidreach.

Eye-bolts 5 are secured. in bolster 1 and have their eyes in alincmentforming the bearings for a shaft 6 carrying a small pinion 7 just abovethe reach 4, and said shaft is 'rovided at its outer end with anoperating lfevcr 8, preferably supported on the end of the bolster 1 asshown A bracket E) is securhd on the reach 4 and carries a gear wheelUmeshing with tie pinion 7, of greater diameter than pinion 7 and rodsor links- 1 connect the brake-beam 12 with this gear wheel 10, so thatwhen the gear wheel 10 is revolving tho brake-beam will be moving towardor away from the wheels as the case may be.

In the modification shown in Fig. 2, my improvements are illustrated inconnection with a vehicle having, what is known as a slip reach. In thismodification a clevis 13 is secured to. the bolster 1 at its center, andthe pinion 7 and ear wheel 10 are both mounted in this 0 evis. The shaft6 for turning the pinion 7 is supported at one end in the clevis 13, andits other end in an eye-bolt 14.

In the modification illustrated in Fig. 3, my improvements are alsoshown in connection with a slip reach, and in which I employ two pairsof pinions and ear wheels 7 and 10. I sup ort the gear W eels 10 on thehounds 3, and connect each of said gear wheels with the brake beam 12 bymeans of links 11.

The operation of the several constructions described is as follows: Whenthe brake lever 8 is raised, the pinion or pinions 9 on shaft 6 arerevolved to transmit motion to the gear or gear wheels 10, and thelatter acting as cams or eccentrics, will, through the medium of therods connecting them with the brakebeam, draw the brake-beam toward thewheels and effectually apply the brake.

In all the constructions shown and described, it will be observed thatgreat leverage is obtained to operate the brake, and the construction ischeap to manufacture and strong and durable in use.

- Other changes might be made in the general form and arrangement ofparts described without departing from my Invention, and hence I do notrestrict myself to the precise details set forth, but consider myself atliberty to make such changes and alterations as fairly fall within thespirit and scope of my invention.

Having thus described my invention What I claim as new and desire tosecure by Letters Patent is:

1. In a vehicle brake mechanism, the combination with a bolster andWheels supporting the same, of a central reach in said bolster, abrake-beam parallel with the bolster, and brake shoes on said beam, of agear wheel, a connecting medium secured to the brake-beam and pivotallyconnected to oppositc sides of the gearat points removed 'rom the centerof the latter, a pinion mcsl'ling with the gear wheel, a shaft on whichsaid pinion is secured, said shaft supported on the bolster, and arearwardly projecting crankarm on said shaft. i

2. In a vehicle brake mechanism, the 00mbmauou oi e bolster, wheelssupporting the same, hounds secured to the bolster and a reach movablein said hounds and bolster, of

a clevis secured to the center of the bolster, :1 large gear Wheelmounted in said elevis, a brake-beam, rods connecting the beam withopposite sides of the said gear wheel, a shaft supported at one end inthe elevis, a bearing secured to the bolster and supporting the shaftnem' its outer end, an operating crank i l i i 1 1 arm on said shaft anda small pinion on said i i heft in the eievis and meshing with the largeS gear whee].

In testimony whereof I have signed .my 1.5

name to this specification in the presence of two subscribing Witnesses.

H. E. MAYNARD, ALvAn HURMAN.

